Element block pseudo-class :active generated with box-sizing content-box transition background border 0px rgba(0,0,0,1) solid box-shadow 1px 1px 1px rgba(0,0,0,0.3) float none margin 0px text-shadow 1px 1px 1px rgba(0,0,0,0.2) line-height 1 width 160px transform font-weight normal cursor default height auto z-index auto border-radius display block font-size 16px overflow hidden position static padding 20px